Tire tread



FIG. 1 is a perspective view of a tire tread, showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a perspective view of a section of the tire tread of FIG. 1 defined by the lines a-a and b-b;

FIG. 4 is an enlarged view of FIG. 3;

FIG. 5 is a side view of a section of the tire tread of FIG. 1 defined by lines e-f; and,

FIG. 6 is an enlarged view of FIG. 5.

The broken line showing of the tire is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a tire tread, as shown and described. 